Compositions – Liquid crystal compositions – Containing pleochroic dye
Reexamination Certificate
2004-04-02
2008-10-14
Visconti, Geraldina (Department: 1795)
Compositions
Liquid crystal compositions
Containing pleochroic dye
C252S299200, C252S299300, C252S299400, C252S299500, C252S299600, C252S299700, C430S020000, C430S270100, C428S001100, C428S001200, C349S176000
Reexamination Certificate
active
07435357
ABSTRACT:
The invention relates to a polymerised liquid crystal (LC) film comprising at least one photoisomerisable compound and having a pattern of regions with different retardation and/or different orientation of the LC material, to methods of preparing such a film, and to its use as alignment layer, optical retardation film or optical waveguide in liquid crystal displays or other optical or electrooptical components or devices, or for decorative or security applications.
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Harding Richard
Hassall Ian Victor Edward
Marden Shirley Ann
McCreary Janice
Skjonnemand Karl
Merck Patent GmbH
Millen White Zelano & Branigan P.C.
Visconti Geraldina
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